Rotary paper slitting and rewinding machine.



No. 665,360. Patented Jan. I, I90I. C. BECK.

ROTARY PAPER SLITTING AND BEWINDING MACHINE.

(Application filed Feb. 10, 1900.) (No Model.) 3 Sheets-Sheet i.

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No. 665,360. Patented Jan. I, l90l. C. BECK.

ROTARY PAPER SLITTING AND REWINDING MACHINE.

(Application filed Feb. 10, 1900.1

3 Sheets-Sheet 3.

(No Model.)

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CHARLES. BECK, OFFPQHILADELPHIA, I

1 AT NT F F ICE.

PENNSYLVANIAQASSIGNOR TO THE CHAS. BECK PAPER GOMPANY,-HLIMITED, OF. SAME PLACE.

ROTARY PAPER SLITTING A NDREWINDING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 665,360, dated January 1, 1901.

Application filed February'lo, 1900. Serial No. 4,770. (No model.)

1'0 all whom it may concern.-

Be it known that LOHARLES BEOK,a citizen of the United States, residing at 609 Chestnut street, Philadelphia, -in the countyof Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Rotary Paper Slitting and Rewinding Machines; and 1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains'to make and use the same.

This invention relates to rotary paper slitting and rewinding machines, and has for'its objects the general improvement of the con-, struction and operation of such machines in the following respects: first, to so arrange'the parts of the machine that the unwinding shaft, one or more, but preferably three, the rewinding-shafts, and the starting and stopping mechanism shall all be on the front of the machine within range of vision of the operator at all times; second, to provide improved tension and shaft adjusting means for the unwinding-shaft; third, to provide improved bearings for the rewinding-shafts by which quick opening and closing lock-bean ings are produced; fourth, to provide improved means for rendering the upper guideroll easily removable, and, fifth, to provide improved adjustable bearing-washers for the cutter-shafts.

With these objects in view' my invention consists in the improved construction, arrangement, and combination of parts herein after fully described and-afterward specifically pointed out in the claims.

In the accompanying drawings, Figure l is a perspective view of a machine constructed in accordance with my invention. Fig. 2 is a detail sectional view of the tension mechanism of the rewindiug-shafts' Fig. 3 is a transverse sectionalview of the same on the broken line 3 3 of Fig. 2. Fig. 4; is a detail view of the clamp-carrying arm detachedi Fig. 5 is a detail-sectional view of the tension and shaft adjusting mechanism of the unwinding-shaft. Fig. 6 is a transverse sectional view of' the same on the broken line 6 6 of Fig. 5. Fig.7 is a fragmentary per spective view'of the connecting portions of the clamps-shown in Figs. 5 and 6. Fig. 815 a partly-sectional view of the guide-rolls and their adjustingmechanism. Fig.9 is a-view in side elevation of the parts shown in Fig. 8. Fig. 10 is a sectional view illustrating the roll-removing mechanism in its holding position. Fig 11 is a sectional view illustrating the removable upper bearing for the rewinding-shafts. Fig. 12 is a view of the same parts inside elevation. Fig. l3 is a perspective view of a hub and cutter-disk. Fig. 14 is a sectional view of a pair of adjacent cutter-disks and theirhubs removed from the shaft. Fig. 15 is aview in front elevation of'two pairs of hubs and disks mounted in operative positions. Fig. 16 is a detail view of partof the adjustable bearing-washers for the cuttershafts.

Like letters of reference mark the same parts wherever they appear in the several figures of the drawings.

In the drawings, a a indicate the-sides of the frame, and b the shaft from which the roll b of paper is to be unwound, provided with a fixed hub 19 this shaft being at the front of the frame.

c, d, and e are the rewiuding-shafts, the butt .or unslit portion 0 of the roll of paper'being rewound on c and strips d e on d and e.

findicates-tension-rods of the-well-known interlocking class situated in the rear of the frame, one set alternating with the otherand interlocked by means of lever f.

g g indicateshafts journaled in the frame intermediate of the interlocking tension-rods f and the front of the frame and carrying cutting-disks h h",sai l-disks havinglaterally-projecting cutting edges h. 116, Fig. 8, indicate guide-rolls journaled in front of these disks.

The rolls and cutter-disks are driven from a main shaft j by-a drive-chain k, engaging sprocket-wheels 0 d e 9 and j The paper starts 0% the unwinding-shaft'at the front, passes through the interlocking tension-rods at the rear, then through the slitting-disks, and is finally rewound on the rolls o, d,'and cat the front of the machine,-the

narrowstrips dandebeingrewound on shafts dand e, and the wider butt 0' 'of the roll of paper, which requires more tension than the strips, is rewound on shaft c,=-the object of placing all of the rewinding-shafts at the front of the machine being to have them all under the eye of the operator while running the machine, so that in the event of breaks the machine may be instantly stopped by means of treadle 7t to avoid loss of paper. A further advantage is that by placing the parts as herein shown a great saving in room is edected, the machine taking up much less floor-space, which sometimes is very costly.

I will now describe the tension devices of the rewinding-shafts 0, cl, and 6, and as they are duplicates only one is shown in detail in Figs. 2, 3, and 4, in which the sprocket-wheel c is extended to form a hub 0 provided with a peripheral groove 0 the sprocket and hub being loosely journaled on shaft 6. On the shaft a radial arm Z is adjustably secured by a set-screw l and is provided with a hole Z at its outer end, in which is fixed a pin Z Clamp-bars on are pivoted together by pin Z pass around hub c in groove 0 and are tightened or loosened by a set-screw Z. The sprocket-chain drives the hub and sprocketwheel, and the friction between the hub and the clamps turns the shaft when sufficiently tight, the adjustment of the clamps allowing them to slip on the hub when necessary.

On the shaft 1), Figs. 5, 6, and 7, is keyed or otherwise secured a hub 19 having a peripheral groove b the shaft being slidably mounted in its bearings in the frame a. A screw-threaded rod n is threaded into frame a, )arallel with shaft (1, and on this is threaded an elongated hand-nut n, having a peripheral groove n Apair of clamp-barsn ofencircle the hub in groove 01 and are adjusted by screw 0?. A fork n, projecting from M, engages in the groove 91 of hand-nut n.

In Figs. 8, 9, and 10 I have illustrated the means for mounting the guide-rolls it. Each roll has a conical recess in each end. Screws 2' are threaded through frames at a and have conical ends engaging the opposite ends of roll 2". A screw isthreaded through frame a into the recess in one end of roll "i. A smooth pin 0, slidably mounted in frame a, has its conical innerend engaging the opposite end recess. The pin 0 is held normally in its outer position, withdrawn from the recess, by a spring 0, secured to the frame and engaging in a notch in the side of the pin. The pin is beveled off at 0 the balance 0 of the end being squared off. A lever 19, pivoted to frame a, has a beveled face 1) and straight face 19 To press the pin 0 from its withdrawn position, as in Figs. 8 and 9, to its inner position to engage the roll, as in Fig. 10, the lever 13 is pressed down, the bevel-face p engaging bevel-face 0' of the pin and forcing it in and the straight face 9 engaging straight end 0 and holding it in.

The bearings of the shafts c, d, and e are illustrated in detail in Figs. 11 and 12, in which a is the frame, having half-bearings a 0 the shaft in said bearing, and a the upper half-bearing hinged at one end to a A weighted handle or lever q is pivoted to the outer end of a and is provided with a hook q, held normally in engagement with a tooth or projection g on the frame by the weight of the lever. To raise the hinged bearings, it is only necessary to raise the handle q, the first movement upward thereof releasing the hook and the further movement raising the hearing.

In Figs. 13 to 16 I have shown the cuttingdisks and theiradjusting meehanism,in which the shafts are indicated at g g and the rotary cutter-disks at h h. Each cutter-disk is secured to one side of a hub 7L2 in any suitable manner, preferably by screws or other detachable fastening devices, in order that the cutter-disks may be easily removed from the hubs when necessary. Each hub is provided with a series of segmental bearing-blocks h, which may form integral parts of the hub or be separate pieces firmly secured thereto. Those blocks project inwardly from the bore of the hub and also extend beyond it at each end. Preferably these will be used on each hub, and they will be of uniform width and be uniformly spaced apart, and the space between them will preferably be equal to the space occupied by them, or approximately so, in order that the projecting ends of the blocks on one hub may fit snugly in the spaces between the blocks on an adjacent hub. This is not essential, however, and more than three blocks may be used on each hub, if preferred. Each hub is to be provided with similar devices for clamping it independently on the shaft, and in the drawings I have shown set-screws h for this purpose.

In operation the several hubs with their attached cutters are slipped onto the shaft with the bearing blocks in substantial contact therewith, it being necessary only to provide for sufficient looseness to permit the hubs to slide on the shaft, and when the cutters are arranged at the predetermined distance apart the hubs will beindividually clamped on the shaft and the cutters will be firmly secured at a right angle to the shaft, the bearingblocks effectually preventing any deviation of the cutter'disk from its true position, it being of course understood that the bearingface of the blocks will be at a true right angle to the cutter when the latter is secured in position on the hub.

The cutters will be firmly held in position irrespective of whether the hubs are in contact or not, and the cutter-disks may thus be adjusted any desired distance apart above the minimum and be just as effective, as the segmental bearing-blocks form part of the bearing of the hub. It is, however, in adjusting the cutter-disks to the minimum distance apart that my invention possesses its most marked advantage, since I am enabled to get a lateral bearing for the cutter on the shaft twice the length of the distance between the cutters without diminishing the distance to which the cutters may be adjusted.

As illustrated in Fig. 14, the cutter-disks are as close together as it is possible to bring them; but as the bearing-blocks are enabled to interlock each cutter-disk has a lateral bearing twice the length of the distance between the cutters. In this figure the space between the cutters is three-eighths of an inch and the length of the bearing-block is three-fourths of an inch, thus adding firmness to the hub on the shaft. It will thus be seen that greater bearing-surface is provided to securely hold the cutter in its proper plane and at the same time the cutter-disks maybe adjusted to almost any desired relative position, certainly to any position likely to be necessary in practical operation, for it must be understood that the length of the bearingblocks may be less than indicated in the drawings and still be effective.

On the screw-threaded portions on the lefthand end of shaft g and right-hand end of shaft g inside ofthe frame I have threaded rings r, preferably of brass, split part way around to form two sections o and W. This ring can be moved outward to bear against the frames a and ct, respectively, to bear against the natural tendency of the shaft g to move to the left and the shaft g to move to the right during .the cutting operation, especially when heavy stock is being out. A screw r threaded through section 1' and bearing against section r, serves to force the sections apart, and thus lock the ring! against accidental turning.

I claim as new- 1. In a paper slitting and rewinding maohine,the combination with the frame thereof, of an unwinding-shaft at the front thereof, tension-rolls at the rear, slitting-disks at the middle, guide-rolls at the delivery side of the slitting-disks, and rewinding-shafts at the front above the unwinding-shaft, the slittingdisks and the tension-rolls, and the starting and stopping mechanism at the front, substantially as described.

2. In a paper slitting and rewinding machine, the combination with the frame, of the unwinding-shaft journaled therein, a hub thereon provided with a peripheral groove, a screw-threaded rod secured in the frame parallel with the shaft, an elongated nut or sleeve on said rod provided with a peripheral groove, a clamp friction-bar adapted to engage half around the hub and provided with a forked end seated in the groove of the sleeve, a second clam p-lever pivoted to the first and adapted to engage around the other half of the hub, and a clamp-screw to draw the two clampbars together, substantially as described.

3. In a paper slitting and rewinding machine, the combination with the frame, of a rewinding sh aft journaled therein,a sprocketwheel loosely journaled on the shaft and provided with an extended hub with a peripheral groove, a radial arm adjustably secured to the shaft and extending beyond the periphery of the hub, a pin secured in the arm parallel with the shaft and crossing the hub, a pair of clamp-bars pivoted together on the pin embracing the hub, andascrew for drawing them together, substantially as described.

4. In a paper slitting and rewinding machine, the combination with the frame, of a guide-roll having conical recesses in its ends, a screw threaded through one side of the frame and having a conical end engaging in one of said recesses, a pin slidably mounted through the other side of the frame, and having a conical end adapted to engage in the other recess, a spring for normally holding the pin outward, and means for pressing and holding it in ward, substantially as described.

5. In a paper slitting and rewinding machine, the combination with the frame, of a guide-roll having conical recesses in its ends, a screw threaded through one side of the frame, and having a conical end engaging in one of said recesses, a pin slidably mounted through the other side of the frame and having a conical end adapted to engage in the other recess, a spring for normally holding the pin outward, the outer end of the pin being beveled oif half-way across, and a lever pivoted to the frame and having an oppositelybeveled edge and straight face, substantially as described.

6. In a paper slitting and rewinding machine, the combination with the frame, of the cutter-disk shaft journaled therein and having shoulders bearing against the inside of the housing, a ring threaded upon the shaft inside of the shoulder split through part of its circumference, and a screw threaded through one portion and bearing against the other to force the two parts outward and serve as a lock-nut substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES BECK.

Witnesses:

CHAS. J. BECK, Jr., LEONIDAS BECK. 

